Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4491fa556d5e94ea01ae7a48ed6a3266db690fbab7c470b7281131f1e9c06945' 
  AND token = 'Z7CdR60RsJ1HduvHQw/UsirJ5DVwb3mvi3RzKE6sCd0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}